direct binding switches on, but not off

[marrog86]

Hello,
i have a Philips lamp wich comes with his own dimmer switch. It is possible for me to bind the switch direct to the lamp that on off and dimming works directly. With this configuration scenes are not working any more, but this is ok for me.
I tried to switch on an TS011F_socket_module connected with my ambient lamp. The problem is, that this socket only turns on with direct binding, but does not switch off any more.
Do anybody know how to configure that correctly or why it is not working?
Thanks